Iligan City annual fiesta Celebration, popularly known as Diyandi Festival, is a week long festival filled with a series of colorful, culturally rich and fun filled core events that culminate on the 29th of September, the feast day of the city's patron Sr. San Miguel.

The celebration has grown not only as the customary day of thanksgiving but also as rallying point for a campaign to promote Iligan City and the surrounding areas globally as an investment and tourism destination. 

Every year, Iligan city, the capital city also has the kick-off, and starts the Fiesta month on 29th of September, with it's own fiesta, in celebration of the city patron Sr. San Miguel. The whole city is then decorated, and all public life will come to a total standstill, to make place for a day merry making.